As more Oregon farmers are converting their crop mix to more profitable berries, such as our popular Marionberry, it has become much harder to find this delicious berry. a loganberry is quite tart, which makes it a great berry for jam, pies, and cobblers. But a bit tart for fresh eating. We begged our grower to add some of these berries to his mix, and are once again able to offer you this incredibly delicious jam.